I used XP MCE 2005 with the Nvidia Purevideo video codec, the Clsid 6.4.9.1 Media Player Classic, this videocard Link, the 7.11 ATI drivers, pulldown checked in catalyst. I made sure to check the nvidia icon by the clock while the movie was playing to see if hw acceleration was used, I used bicubic 1.00 in the mpc resizer, there was no better setting.